package com.tensquare.user.service;

import com.tensquare.common.util.IdWorker;
import com.tensquare.user.dao.UserDao;
import com.tensquare.user.pojo.User;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.stereotype.Service;

import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Root;
import javax.transaction.Transactional;
import java.util.*;
import java.util.concurrent.TimeUnit;


/**
 * 用户服务层
 *
 * @author Administrator
 *
 */
@Service
public class UserService {

    @Autowired
    private UserDao userDao;

    @Autowired
    private IdWorker idWorker;

    @Autowired
    private RedisTemplate redisTemplate;

    @Autowired
    private RabbitTemplate rabbitTemplate;

    @Autowired
    BCryptPasswordEncoder encoder;

    /**
     * 查询全部列表
     * @return
     */
    public List<User> findAll() {
        return userDao.findAll();
    }


    /**
     * 条件查询+分页
     * @param whereMap
     * @param page
     * @param size
     * @return
     */
    public Page<User> findSearch(Map whereMap, int page, int size) {
        Specification<User> specification = createSpecification(whereMap);
        PageRequest pageRequest =  PageRequest.of(page-1, size);
        return userDao.findAll(specification, pageRequest);
    }


    /**
     * 条件查询
     * @param whereMap
     * @return
     */
    public List<User> findSearch(Map whereMap) {
        Specification<User> specification = createSpecification(whereMap);
        return userDao.findAll(specification);
    }

    /**
     * 根据ID查询实体
     * @param id
     * @return
     */
    public User findById(String id) {
        return userDao.findById(id).get();
    }

    /**
     * 增加
     * @param user
     */
    public void add(User user) {
        // 设置主键，雪花分布式ID生成器
        user.setId( idWorker.nextId()+"");
        user.setFollowcount(0);
        user.setFanscount(0);
        user.setOnline(0L);
        user.setRegdate(new Date());
        user.setUpdatedate(new Date());
        user.setLastdate(new Date());
        // 密码加密 加密后的密码
        String newpassword = encoder.encode(user.getPassword());
        user.setPassword(newpassword);
        userDao.save(user);
    }

    /**
     * 修改
     * @param user
     */
    public void update(User user) {
        userDao.save(user);
    }

    /**
     * 删除
     * @param id
     */
    public void deleteById(String id) {
        userDao.deleteById(id);
    }

    /**
     * 动态条件构建
     * @param searchMap
     * @return
     */
    private Specification<User> createSpecification(Map searchMap) {

        return new Specification<User>() {

            @Override
            public Predicate toPredicate(Root<User> root, CriteriaQuery<?> query, CriteriaBuilder cb) {
                List<Predicate> predicateList = new ArrayList<Predicate>();
                // ID
                if (searchMap.get("id")!=null && !"".equals(searchMap.get("id"))) {
                    predicateList.add(cb.like(root.get("id").as(String.class), "%"+(String)searchMap.get("id")+"%"));
                }
                // 手机号码
                if (searchMap.get("mobile")!=null && !"".equals(searchMap.get("mobile"))) {
                    predicateList.add(cb.like(root.get("mobile").as(String.class), "%"+(String)searchMap.get("mobile")+"%"));
                }
                // 密码
                if (searchMap.get("password")!=null && !"".equals(searchMap.get("password"))) {
                    predicateList.add(cb.like(root.get("password").as(String.class), "%"+(String)searchMap.get("password")+"%"));
                }
                // 昵称
                if (searchMap.get("nickname")!=null && !"".equals(searchMap.get("nickname"))) {
                    predicateList.add(cb.like(root.get("nickname").as(String.class), "%"+(String)searchMap.get("nickname")+"%"));
                }
                // 性别
                if (searchMap.get("sex")!=null && !"".equals(searchMap.get("sex"))) {
                    predicateList.add(cb.like(root.get("sex").as(String.class), "%"+(String)searchMap.get("sex")+"%"));
                }
                // 头像
                if (searchMap.get("avatar")!=null && !"".equals(searchMap.get("avatar"))) {
                    predicateList.add(cb.like(root.get("avatar").as(String.class), "%"+(String)searchMap.get("avatar")+"%"));
                }
                // E-Mail
                if (searchMap.get("email")!=null && !"".equals(searchMap.get("email"))) {
                    predicateList.add(cb.like(root.get("email").as(String.class), "%"+(String)searchMap.get("email")+"%"));
                }
                // 兴趣
                if (searchMap.get("interest")!=null && !"".equals(searchMap.get("interest"))) {
                    predicateList.add(cb.like(root.get("interest").as(String.class), "%"+(String)searchMap.get("interest")+"%"));
                }
                // 个性
                if (searchMap.get("personality")!=null && !"".equals(searchMap.get("personality"))) {
                    predicateList.add(cb.like(root.get("personality").as(String.class), "%"+(String)searchMap.get("personality")+"%"));
                }

                return cb.and( predicateList.toArray(new Predicate[predicateList.size()]));

            }
        };

    }

    /**
     * 发送短信验证码
     * @param mobile 手机号
     */
    public void sendSms(String mobile) {
        // 1.生成6位短信验证码
        Random random=new Random();
        // 最大数
        int max=999999;
        // 最小数
        int min=100000;
        int code = random.nextInt(max);
        // 随机生成
        if(code<min) {
            code = code + min;
        }
        System.out.println(mobile+"收到验证码是:"+code);
        // 2.将验证码放入redis，五分钟过期
        redisTemplate.opsForValue().set("smscode_"+mobile, code+"",5, TimeUnit.MINUTES);
        // 3.将验证码和手机号发动到rabbitMQ中
        Map<String,String> map=new HashMap();
        map.put("mobile",mobile);
        map.put("code",code+"");
        rabbitTemplate.convertAndSend("sms",map);
    }

    public User findByMobileAndPassword(String mobile, String password) {
        User user = userDao.findByMobile(mobile);
        System.out.println(user);
        if (user!=null && encoder.matches(password, user.getPassword())) {
            return user;
        } else {
            return null;
        }
    }

    /**
     * 更新粉丝数
     * @param x
     */
    @Transactional
    public void incFanscount(String userid,int x) {
        userDao.incFanscount(userid,x);
    }

    /**
     * 更新关注数
     * @param x
     */
    @Transactional
    public void incFollowcount(String userid,int x) {
        userDao.incFollowcount(userid,x);
    }
}
